<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">
            没找到匹配数据
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
import BScroll from '@better-scroll/core'
import {mapMutations} from 'vuex'

export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data() {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  updated() {
    this.scroll = new BScroll(this.$refs.search, {
      probeType: 3,
      pullUpLoad: true
    })
  },
  computed: {
    hasNoData() {
      return !this.list.length
    }
  },
  methods: {
    ...mapMutations(['changeCity']),
    handleCityClick(city) {
      this.changeCity(city)
      // this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (
              value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1
            ) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~style/varibles.styl';

.search {
  height: 0.72rem;
  padding: 0.1rem;
  background: $bgColor;

  .search-input {
    box-sizing: border-box;
    width: 100%;
    height: 0.62rem;
    height: 0.62rem;
    line-height: 0.62rem;
    text-align: center;
    border-raduis: 0.06rem;
    color: #666;
    padding: 0.1rem;
  }

}
  .search-content
    position:absolute;
    overflow:hidden;
    z-index:1;
    top:1.68rem;
    left:0;
    right:0;
    bottom:0;
    background:#ccc
    .search-item
        line-height:.62rem;
        padding-left 0.2rem
        color:#666
        background:#fff
</style>
